2023 BMW M340I: Recalls, Problems & MPG
Here are the deets on the 2023 BMW M340I: 1 recall, 1 owner complaint and up to 26 mpg combined.
Recalls
1 vehicle recall from the manufacturer. Repairs are free. Check your VIN to see if one is still open on your car.
Electrical Vehicle recall #23V118000 · 2023 · 120 vehicles
What's wrong: During a service visit, a replacement electronic control unit (ECU) May have been installed with incorrect programming, which can cause the automatic door locking (adl) function to not lock the doors as intended.
Why it matters: Doors that do not lock as intended while the vehicle is in motion May open during a crash, increasing the risk of injury.
The fix: Dealers will update the ECU software, free of charge. Owner notification letters were mailed April 10, 2023.
Most-reported problems
Owner complaints filed with NHTSA, by component. One complaint can list several components. 0 mention a fire, 0 injuries and 0 deaths were reported.
What owners describe
- Engine (1): no single recurring theme in the descriptions.
The 2023 BMW M340I has 1 owner complaints, ranking #4 of 5 M340I model years for complaints (well below the 14 average). Neighboring years: 2022 (7 complaints, 1 recalls).
Engines & fuel economy (EPA)
| Engine | Transmission | Drive | City | Hwy | Comb. | Fuel |
|---|---|---|---|---|---|---|
| 3.0 L 6-cyl turbo hybrid | Automatic (S8) | All-Wheel Drive | 23 | 32 | 26 | Premium |
| 3.0 L 6-cyl turbo hybrid | Automatic (S8) | Rear-Wheel Drive | 23 | 31 | 26 | Premium |
Want the full repair deets? Get the factory manual.
Recall and complaint data tells you what goes wrong. A service manual tells you how to fix it: torque specs, wiring diagrams, fluid capacities and step-by-step procedures for the 2023 BMW M340I.
Closest thing to the factory manual for most years. Pay once, keep it.
Most $25–$78, one-timePro-shop repair procedures, wiring diagrams and TSBs for your exact car.
From $19.99/mo · $39.99/yrOEM procedures, specs and recall/TSB info, the same source many shops use.
From $19.99/mo · $59.99/yrStep-by-step photos written from a real teardown. Great for first-timers.
Books ~$30–$40 · AllAccess $34.99/moHeads up: we may earn a commission if you buy through these links, at no extra cost to you. Prices checked 2026-10 and can change. We never host or link to pirated manuals. Disclosure
FAQ
Does the 2023 BMW M340I have any recalls?
Yes. NHTSA lists 1 vehicle recall for the 2023 BMW M340I. Recall repairs are free at any dealer, no matter how old the car is. Check your VIN at nhtsa.gov/recalls.
What are the most common 2023 BMW M340I problems?
Owners have filed 1 complaints with NHTSA. The most-reported areas are engine (1).
What gas mileage does the 2023 BMW M340I get?
EPA ratings run up to 26 mpg combined (3.0 L, Automatic (S8)), across 2 engine and transmission combos.
Where can I get a 2023 BMW M340I repair manual?
eManualOnline sells downloadable manuals, Mitchell 1 DIY and ALLDATAdiy sell online access to factory repair data, and Haynes sells printed guides and online access. Pick a download if you want to keep it, or a subscription for wiring diagrams and TSBs.